Hey there, I have written the following MongoDB schema to return req

Using a projection on a dataquery about flask-mongorest HOT 3 OPEN

closeio commented on August 16, 2024

Using a projection on a dataquery

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Comments (3)

KeironO commented on August 16, 2024

Update

I've written a small get_queryset function in the resource I want to query.

    def get_queryset(self, *args, **kwargs):
        return super(MetaboliteAdductsResource, self).get_queryset(*args, **kwargs).fields(name=1, accurate_mass=1, molecular_formula=1)

However, I'm struggling a little bit to work out how to add the projection operator into this.

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KeironO commented on August 16, 2024

Update 2

Slowly getting there, but I still have a small problem surrounding the fact that the projection still doesn't work as intended.

    def get_queryset(self, *args, **kwargs):
        return super(MetaboliteAdductsResource, self).get_queryset(*args, **kwargs).fields(name=1, accurate_mass=1,
                                                                                           molecular_formula=1, adducts=1,
                                                                                           adducts_negative_peaks__S = 1

Returns all embedded documents in adducts, despite the obvious projection.

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KeironO commented on August 16, 2024

And I've just realised that the projection is incorrect, any help would be greatly appreciated 👍

Thanks,

Keiron.

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